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@MISC{Kroon:282939,
author = {Kroon, Cristina and Nagy-Herczeg, Domonkos and Aguilar
Perez, Gerard and Ranti, Dimitra and Syropoulou, Vasiliki},
title = {{D}ataset: {P}hosphorylation of presynaptic {PLPPR}3
controls synaptic vesicle release},
publisher = {Mendeley Data},
reportid = {DZNE-2025-01400},
year = {2025},
abstract = {This dataset contains the raw data from the publication
„Phosphorylation of presynaptic PLPPR3 controls synaptic
vesicle release“ Kroon et al. 2025 published in iScience.
Presented here are the original western and PhosTag blots
supporting the biochemical characterization, as well as mass
spectrometry and immunocytochemistry data. For further
details please refer to the publication. Abstract:
Phospholipid-phosphatase related protein 3 (PLPPR3) belongs
to a family of transmembrane proteins highly expressed in
the nervous system where it regulates critical axonal growth
processes during guidance, filopodia formation and
branching. However, little is known regarding its role in
synapses and the signaling events regulating PLPPR3
function. Here, we identify 26 high-confidence
phosphorylation sites in the intracellular domain of PLPPR3
using mass spectrometry. Biochemical characterization
established one of these – S351 – as a bona fide
phosphorylation site of protein kinase A (PKA). PLPPR3 is
enriched at presynaptic terminals, and deletion of PLPPR3
results in increased depolarization-induced synaptic vesicle
release in hippocampal neurons. This tonic inhibitory signal
towards depolarization-induced presynaptic activity is
corrected by expression of PLPPR3 intracellular domain, but
not a S351A phospho-dead mutant, in Plppr3-/- hippocampal
neurons. We propose that a PLPPR3 phosphorylation under the
control of PKA activity is a novel signaling integrator of
presynaptic activity in hippocampal neurons.},
keywords = {Molecular Neuroscience (Other) / Phosphorylation (Other) /
Protein-Protein Interaction (Other) / Signal Transduction
(Other) / Cellular Neuroscience (Other) / Presynaptic
Mechanisms of Synaptic Transmission (Other) / Protein
Phosphorylation (Other)},
cin = {AG Milovanovic (Berlin)},
cid = {I:(DE-2719)1813002},
pnm = {351 - Brain Function (POF4-351)},
pid = {G:(DE-HGF)POF4-351},
typ = {PUB:(DE-HGF)32},
doi = {10.17632/w97nrdvxbc.1},
url = {https://pub.dzne.de/record/282939},
}